code: def test_clicking_zooms_in(
      self, single_plot_page: SinglePlotPage
  ) -> None:
      plot = _make_plot()
  
      page = single_plot_page(plot)
  
      [button] = page.get_toolbar_buttons(plot)
      button.click()
  
      page.eval_custom_action()
  
      first = page.results
      assert first["xrstart"] > 0
      assert first["xrend"] < 1
      assert first["yrstart"] > 0
      assert first["yrend"] < 1
  
      [button] = page.get_toolbar_buttons(plot)
      button.click()
  
      page.eval_custom_action()
  
      second = page.results
      assert second["xrstart"] > first["xrstart"]
      assert second["xrend"] < first["xrend"]
      assert second["yrstart"] > first["yrstart"]
      assert second["yrend"] < first["yrend"]
  
      assert page.has_no_console_errors()
  
file_path: bokeh/tests/integration/tools/test_zoom_in_tool.py
imports: from __future__ import annotations
  import pytest
  from bokeh.events import RangesUpdate
  from bokeh.models import ColumnDataSource, CustomJS, Plot, Range1d, Rect, ZoomInTool
  from tests.support.plugins.project import SinglePlotPage
  from tests.support.util.selenium import RECORD
label_desc: Use image node_id 2 for calling the Test_ZoomInTool obj's underlying member method code with example usage: obj.test_clicking_zooms_in(single_plot_page) without return types